444431133213 has 32 divisors (see below), whose sum is σ = 622278758400. Its totient is φ = 281866568256.

The previous prime is 444431133197. The next prime is 444431133221. The reversal of 444431133213 is 312331134444.

It is not a de Polignac number, because 444431133213 - 2⁴ = 444431133197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444431133233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 657178 + ... + 1149236.

It is an arithmetic number, because the mean of its divisors is an integer number (19446211200).

Almost surely, 2^444431133213 is an apocalyptic number.

It is an amenable number.

444431133213 is a deficient number, since it is larger than the sum of its proper divisors (177847625187).

444431133213 is a wasteful number, since it uses less digits than its factorization.

444431133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492281.

The product of its digits is 41472, while the sum is 33.

Adding to 444431133213 its reverse (312331134444), we get a palindrome (756762267657).

The spelling of 444431133213 in words is "four hundred forty-four billion, four hundred thirty-one million, one hundred thirty-three thousand, two hundred thirteen".